AT Command Set

2.8ATD><str> Originate call to phone number in memory with corre- sponding field

This command searches the active phonebook for a given string <str> and dials the assigned phone number. The active phonebook is the one set with AT+CPBS.

Execute command

TA attempts to set up an outgoing call to stored number

ATD><str>[mgsm][;]

Note: This command may be aborted generally by receiving a character dur-

 

 

ing execution. It can´t be aborted in some connection setup states,

 

 

such as handshaking.

 

Response

 

If error is related to ME functionality:

 

+CME ERROR: <err>

 

If no dialtone (parameter setting ATX2 or ATX4):

 

NO DIALTONE

 

If busy (parameter setting ATX3 or ATX4):

 

BUSY

 

 

If a connection cannot be set up:

 

NO CARRIER

 

If successfully connected and non-voice call:

 

CONNECT<text> TA switches to data state.

 

 

Note: <text> output only if +ATX parameter setting with value > 0.

 

When TA returns to command mode after call release:

 

OK

 

 

If successfully connected and voice call:

 

OK

 

 

Parameter

 

<str>

string type value (“x”), which should equal an alphanumeric field in

 

 

at least one phonebook entry in the searched memories; used char-

acter set should be the one selected with Select TE Character Set +CSCS. <str> can contain escape sequences as described in chapter “Supported character sets“, pg. 12.

<str> must be wrapped in quotation marks (""), if escape sequences or parameter <mgsm> are used or if the alphanumeric strings con- tains a blank. If not, quotation marks are optional.

<mgsm> I Activates CLIR (disables presentation of own phone number to called party)

iDeactivates CLIR (enables presentation of own phone number to called party)

<;> Only required to set up voice calls. TA remains in command mode.

ReferenceNote

V.25ter/GSM 07.07 Command is not supported for data calls! See also ATX and Chapter 9.1.5 for <text>

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Siemens MC35 manual Str

MC35 specifications

The Siemens MC35 is a compact and versatile modem designed primarily for mobile communication, data transmission, and machine-to-machine (M2M) applications. Launched in the early 2000s, it quickly became popular due to its blend of performance, reliability, and ease of integration, making it a solid choice for developers and businesses.

One of the key features of the MC35 is its support for GSM and GPRS technologies. This allows it to connect seamlessly to various networks, enabling users to transmit data at speeds that were impressive for its time. The GPRS capability can offer data rates of up to 171.2 kbps, allowing for efficient data transfer even in areas with limited connectivity.

The MC35 is designed to support both SMS and voice functionalities, making it adaptable for a range of applications. This includes remote monitoring, telemetry, and alarm signaling. The ability to send and receive SMS messages is a significant advantage for applications that require immediate alerts and notifications, enhancing its utility in security systems and industrial automation.

Furthermore, the modem is equipped with a range of interfaces, including serial communication (RS232), which makes it compatible with various hardware devices. This facilitates easy integration into existing systems, whether for industrial machinery or consumer electronics. Additionally, it features a robust software development kit (SDK), which enables developers to create custom applications tailored to their specific requirements.

Power consumption is another notable characteristic of the Siemens MC35. It is engineered to be energy-efficient, which is especially important for battery-operated devices or systems that require a prolonged operation without frequent recharging or maintenance.

In terms of physical characteristics, the MC35 is compact and lightweight, allowing it to fit into various enclosure designs without occupying much space. Its durability ensures it can perform reliably in different environments, making it suitable for outdoor and industrial applications.

To summarize, the Siemens MC35 stands out as a reliable modem with a rich feature set that includes GSM and GPRS support, SMS and voice capabilities, easy integration through various interface options, and energy-efficient operation. Its adaptability makes it a valuable tool for a wide array of communication and data transmission tasks, solidifying its place in the evolution of mobile communications technology.